Special filler for flexure-resistant capacitor film and preparation method of special filler
A technology for capacitor films and raw materials, which is applied in the field of special fillers and their preparations for flexure-resistant capacitor films, can solve the problems of poor low-temperature impact resistance, low impact strength, and poor resistance to boiling water, and achieves excellent performance, good impact resistance, and increased The effect of torrefaction resistance
Inactive Publication Date: 2014-10-08
ANHUI JIANGWEI PRECISION IND
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Problems solved by technology
Although simple polypropylene (PP) film has the outstanding advantages of heat resistance and corrosion resistance, and the product can be sterilized by steam, and its density is small, it is the lightest general-purpose plastic; but it has the disadvantages of poor low temperature impact resistance and easy aging
Polystyrene (PS) film has extremely high transparency, good electrical insulation performance, easy coloring, good processing fluidity, good rigidity and good chemical corrosion resistance, but relatively brittle, low impact strength, prone to stress cracking, heat resistance Poor performance and not resistant to boiling water; therefore, the film needs to be modified
Method used
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Experimental program
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Embodiment Construction
[0014] A kind of special filler for anti-bending capacitor film, made of the following raw materials in parts by weight (kg): intumescent flame retardant 5, calcium zinc stabilizer 2.5, aluminum sulfate 3, alum 1.5, charcoal 5, aluminum oxide 10, mica 4. Borax 1.2, nano cerium oxide 1.5, loess 63, 5% hydrochloric acid, water, additive 17;
[0015] The auxiliary agent is made of the following raw materials in parts by weight (kg): kaolin 6, 2.3% sodium hydroxide solution 23, glyceryl monostearate 0.2, methacrylate 1.5, ethyl acrylate 0.6, activated calcium carbonate 13. Tridecafluorooctyltrimethoxysilane 0.7, nano-graphite 1.2, tea saponin 0.1, Rosa japonica essential oil 0.1, potassium persulfate 0.1, appropriate amount of water; the preparation method is: mix kaolin with 2.3% sodium hydroxide solution, Heat to 75°C, stir and react for 25 minutes, filter to obtain filter residue, wash with water until pH is 8, dry and pulverize into 2-50μm particles, then spray into tridecaflu...
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The invention provides special filler for a flexure-resistant capacitor film. The special filler is prepared from the following raw materials in parts by weight: 4-6 parts of intumescent flame retardant, 2-3 parts of calcium-zinc stabilizer, 2-4 parts of aluminum sulfate, 1-2 parts of alum, 4-6 parts of charcoal, 9-11 parts of aluminum oxide, 3.8-4.2 parts of mica, 1-1.4 parts of borax, 1-2 parts of nano cerium oxide, 60-65 parts of loess, a proper amount of 4-6% hydrochloric acid, a proper amount of water and 15-20 parts of adjuvant. The filler provided by the invention is capable of improving the flexure resistance of the film, good in impact resistance and favorable in flame retardance; due to the addition of aluminum oxide, the wear resistance, compactness, glossiness, cold and hot fatigue, fracture toughness and creep deformation resistance of the film are improved; due to the addition of loess, the cost is reduced; due to the addition of adjuvant, the dispersibility and reinforcing property of the filler can be improved, and the strength and impact toughness of the film can be improved; and the filler is suitable for a polypropylene capacitor film, favorable in performance, low in cost and simple in preparation.
Description
technical field [0001] The invention belongs to the field of capacitor films, and in particular relates to a special filler for a capacitor film resistant to warping and a preparation method thereof. Background technique [0002] Film capacitors are excellent capacitors due to their many excellent characteristics. Its main characteristics are as follows: non-polarity, high insulation resistance, excellent frequency characteristics (broad frequency response), and low dielectric loss. Based on the above advantages, film capacitors are widely used in analog circuits. Especially in the part where the signals are cross-connected, capacitors with good frequency characteristics and extremely low dielectric loss must be used to ensure that the signal will not be distorted when it is transmitted. [0003] Among all plastic film capacitors, polypropylene (PP) capacitors and polystyrene (PS) capacitors have the most prominent characteristics, so in recent years, the frequency and qua...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C08K13/06C08K3/30C08K3/04C08K3/22C08K3/34C08K3/38C08K3/26C08L23/12
Inventor 胡小云周池莲高亮
Owner ANHUI JIANGWEI PRECISION IND